#include "mytest.h"

#include "unistd.h"

int main() {
    int count = 9;
    while (count--) {
        printf("%d\r", count);
        fflush(stdout);
        sleep(1);
    }
    return 0;
    
    
    //int ret = sum(100);
    //printf("%d\n", ret);
    //return 0;
}
